MVC中 Remote的用法

一、web.config加入
  <appSettings>
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>

二、Controllers验证方法
using System;
using System.Globalization;
using System.Web.Mvc;
using System.Web.UI;
using Mvc3RemoteVal.Models;

namespace Mvc3RemoteVal.Controllers {   
    public class ValidationController : Controller {

/// <summary>
        /// 检验商家昵称是否已存在
        /// </summary>
        /// <param name="sellerNick">昵称，定义的变量名需要与Model中的属性名保持一致，大小写忽略不计</param>
        /// <returns>bool</returns>

　　  [OutputCache(Location = OutputCacheLocation.None, NoStore = true)]   //清除缓存

public JsonResult CheckSellerNick(string sellerNick)  
        {
            bool isValidate = false;//true代表不存在，false代表存在
            if (!SellerAccess.CheckSellerNick(sellerNick))
            {
                isValidate = true;
            }
            return Json(isValidate, JsonRequestBehavior.AllowGet);
    
        }

}
}
三、model
public class UserModel {
    [Required]
    [StringLength(6, MinimumLength = 3)]
    [Remote("CheckSellerNick", "Validation",ErrorMessage="该昵称已存在")]//ActionName,Controller,错误信息
    public override string SellerNick{ get; set; }
}

四、View引用
<script src="@Url.Content("~/Scripts/jquery-1.7.1.js")"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")"></script>